Music-roll spool.



- G. H. DAVIS.

MUSIC ROLL SPOOL. APPLICATION rILED MAY?, 1909. Rmmwn 00T. 2o. 1911.

Patented Aug. 20, 1912 stri/iras earner ernten;

MUSIC-ROLL SPCOL.

\ Specification of Letters Patent.

Patented eine. 25d, it/d2.

To all t/1mm t may concern Be it known that I, Gnoncn HoWLr/rr Davis, a citizen oit the United States, resid ing' in the town ot Test Orange, count-y of iilssex, and vState or New Jersey, have invented certain new and useful .Improvements in ltlusicdoll- Spools; and I declare l the following tobe a vfull, clear, and exact description ot the same, such as will enable others skilled in .the art-to which it pertains to make, construct, and use the same.

In my former Itatent No. 893571 I have described a. stzmdard music roll spool` in which the spool limdj.' is constructed of wood, having the iiang'c at one end adjustable, so that the etective length ot the spool may be varied so as to adapt it to the varying, width of the roll as it may be atected by varying temperatures moisture in the surrounding atmosphere. I have also described in .my pending' application Ser. No. 480,307 a simif larly adjustable spool for What is known as 88 note music.

My present invention is .designed as an improvement upon each of these spools, and has tor its object not only the reduction of cost in manufacture but also the construction of the spool body of material which will retain its shape under all conditions of atmospheric change, and further provide a spool which will run perfectly true at all times in its bearings A 'further object of my invention is the utilization of the Waste products of music roll manufacture. These iv'aste products co ot strips ot the roll material spoiled during the process or" perforating or other- Wise.

In carrying` out my invention, I vmake use of the structures illustrated in the accompanying` drawings in Which- Figure l, illustrates a plan of a standard spool; Fig. 2, a similar vievi7 of an 88 note spool. Fig. 3, is a sectional view of a standardspcol. Fig 4, is a sectional Viewv of an S8 note spool.

Similar letters of reference refer to like parts throughout the specifications and drawings.

The standard spool' consists essentially of the main body l, consistingof the paper tube of suitable dimensions into one end of* which is lfirmly secured the cylindrical wonden plug 2, having a reduced shoulder 3" to receive the spool dange s. Into the end the plug 2, is irmiy secured the vWing pivot 5 as clearly shownin IT-ig. o.. The plug 2 may be secured in position in any convenient manner as by means ,of glue or tacksl or both. Near the opposite end of tube l, is a second plug 6, located some distance from the open end, and rnlly secured in position either by `glue or tacks or both. This plug` G, is'provi/ded With a screwthreaded .axial aperture 7, to receive the adjustinp- Wing screw 8, which 'is axially` secured in the adjusting' plug 9, the latter carrying the other flange l0. The Wing screw 8, projects beyond the plug 9, as shown to form the other pivot l1, which with the wing pivot forms the support for the spool, in the supporting bearings in the instrument in which the spool is used.

In the form illustrated in Figs. 2 and et, the general structure is identical with that just described, and diiters only in the torni of pivot bearings. The Wing pivot 5, of the standard spool is omitted and the plug' 2, is provided With a socket l2 and dianietrical slot 13. The Winnr screw is also shortened and no pivot ll is needed, the conical socket 14, taking its place. Y Figs. l and 3, are identical Wit-h 4those of my prior Patent No. 89357l-and the pivot bearings of Figs. 2 and 4 are the same as those of' my prior application Ser. No.

The pivot bearings of 480,307 and I make no special claim to them herein'. In each of the structures it Will be noted that the varying space between vthe adjace1it-ends of Ithe parts G and 9, is protected and there is no chance for the paper of the music roll to become pinched between these parts to interfere with the adjustm'entoiC the length. of the spool; in other words, the first layers of the roll are supported throughout their entire length.

In the use of Wooden spool bodies it requently happens thatv the Wood is often not properly seasoned-and therefore Warps and 'gets out of true. The use of the paper tube entirely obviates this, and enables me to construct a spool suoli that the ent-ire surface thereol is symmetrical' with its truey Working axis.` Its use also results in a considerable saving in cost over the Wooden spool body, and at the same time I am enabled by it to utilize the Valuable features of the micrometric adjustment of my -former patent and application.

I claim:

i.,In a music roll spool the combination' of a tubular spool body, a cylindrical plug tubular permanently secured in one end of said body, a nently, a second plug secured Within' said body nearits other end, a third plug extending Within said body and vadjustably secured to the second plug, and a spool flange rigidly secured to said third plug.

2. In a music roll spool the combination of a tubularspool body, a plug rigidly and permanently' secured Within said body near one of its ends, said plug having a screw threaded axial aperture therethrough, an adjustin plug extending into the end of the body, a screw rigidly Connected to said adjusting plug and engaging said screw threaded aperture in the first .named plug, and a flange permanently secured upon said adjusting plug. y l. y v 3i In a musie roll spool, the combination copies of this patent may be` obtained for ve cents each, by

ange secured to said plug perinaof a spool body made of paper tube, a cylindrical plug permanentlyseieured Within saidspool body l'adjacent one end thereof, a ge-bearing adjusting plug extending into said body and adjustably connected to said first named plug.

4. In a music of a paper tube spool body, an axially aper tured cylindrical plug permanently secured Within ,Said body, a il-ange bearing plug having an axial adjust-ing screw pernianen'tly secured thereto and adjustably engaging the aperture of said first named plug. f

This specification this 5th day/of May 1909.

GEORGE HOWLETT DAVIS. v

VVitnesseszf B. A. MASTERS, M. VAN NESS.,

addressing the Commissioner of Patents,

. Washington, D. C. A:

roll spool the-combination signed and lwitnessed 

